公开(公告)号：US5591406A

公开(公告)日：1997-01-07

申请号：US527434

申请日：1995-09-13

申请人： Kenji Hirai ,  Akira Aono ,  Shinya Tsuneda ,  Hirokazu Matsumoto ,  Yuji Yamashita ,  Hisayoshi Tanaka ,  Takanori Shiina ,  Haruko Kaburagi

发明人： Kenji Hirai ,  Akira Aono ,  Shinya Tsuneda ,  Hirokazu Matsumoto ,  Yuji Yamashita ,  Hisayoshi Tanaka ,  Takanori Shiina ,  Haruko Kaburagi

IPC分类号： G01N30/04 ,  G01N30/02 ,  G01N30/38 ,  G01N30/46 ,  G01N30/62 ,  G01N30/88 ,  G01N33/00 ,  G01N31/12 ,  G05D9/00

CPC分类号： G01N30/467 ,  G01N33/0031 ,  G01N2030/025 ,  G01N2030/626 ,  G01N2030/8804 ,  G01N2030/8886 ,  G01N30/38

摘要： An automatic exhaust gas analyzer for analyzing an exhaust gas of an internal combustion engine. The analyzer includes: a) plural analyzing units; b) two independent gas lines provided in each of the plural analyzing units; c) a gas-chromatographic column provided in each of the gas lines; d) a gas-chromatographic detector connected with the column in each of the gas lines; and e) a signal communication network interconnecting the gas-chromatographic detectors. Exhaust gas and the background gas are sampled at each stage of a predetermined run cycle, and are provided immediately to the two independent gas lines of the plurality of analyzing units respectively. Then the exhaust gas and background gas are analyzed in parallel in each of the plurality of analyzing units, which facilitates equalizing the measurement conditions of the two gases and the background correction of the measurement results of the exhaust gas can be made at high precision.

摘要翻译： 一种用于分析内燃机的废气的自动废气分析装置。 分析仪包括：a）多个分析单元; b）设置在多个分析单元中的每一个中的两个独立的气体管线; c）设置在每条气体管线中的气相色谱柱; d）气相色谱检测器，每个气体管线与色谱柱连接; 和e）互连气相色谱检测器的信号通信网络。 废气和背景气体在预定的运行循环的每个阶段被采样，并且立即分别提供给多个分析单元的两个独立气体管线。 然后在多个分析单元中的每个分析单元中并行分析废气和背景气体，这有助于均衡两种气体的测量条件，并且可以高精度地进行废气的测量结果的背景校正。